SZMMSZ5240BT1G

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	10V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	17 Ohms
Current - Reverse Leakage @ Vr:	3µA @ 3V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123
Base Part Number:	MMSZ5240B

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Diodes are important components of a circuit. They can be used to limit current flow, change the voltage drop, or modulate the signal in a system. The SZMMSZ5240BT1G diode is an example of a zener diode, one of the most important types of diodes. In this article, we\'ll discuss the application fields and working principles of the SZMMSZ5240BT1G.

What Is a Zener Diode?

A zener diode is a two-pin electronic component that can withstand a high reverse voltage, and can also conduct current in both directions, as if it were a regular diode. The height of its reverse-voltage rating defines the working characteristics of this diode. Generally, zener diodes of higher rating come with better noise immunity, temperature stability, and longer lifetimes.

Application Fields of the SZMMSZ5240BT1G

The SZMMSZ5240BT1G is a glass-encapsulated power zener diode, with a maximum reverse voltage of 420 volts. It is mainly used in high-voltage, high-frequency power supply circuits and linear systems and communications applications. The product is suitable for a wide range of applications, such as power supplies, voltage regulation, feedback, clamp circuits, radio, television, audio, and other related electronics.

Working Principle of SZMMSZ5240BT1G

The SZMMSZ5240BT1G diode is based on a zener diode structure and has a very high reverse breakdown voltage of 420 volts. This diode can withstand very high reverse voltage and current applied externally. Thus, it is used in many fields to stabilize the voltage in a circuit. The SZMMSZ5240BT1G works on the principle of Zener breakdown. When a high enough reverse-bias voltage is applied across the diode, its electric field strength increases, which is sufficient to pull electrons from the crystal lattice and create electron-hole pairs. This in turn discharges the excess energy and causes a thermal saturation effect, which eventually results in breakdown.

Advantages of SZMMSZ5240BT1G

The SZMMSZ5240BT1G has several advantages, including:

• High power dissipation for small form factor
• Excellent noise immunity and temperature stability
• High reverse voltage rating
• Robust construction with glass encapsulation
• Longer life-span

Conclusion

The SZMMSZ5240BT1G is a glass-encapsulated power zener diode, with a high reverse breakdown voltage of 420 volts. It is mainly used in high-voltage, high-frequency power supply circuits and linear systems and communications applications. The diode is based on the principle of Zener breakdown and offers several advantages, including high power dissipation, excellent noise immunity and temperature stability, and longer life-span.

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